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[patch] patch to get side bearing

patch_bug_ttf_5135_sidebearing.diff (text/plain), 1.94 KB, created by Sylvain on 2020-05-15 15:20:20 UTC

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Creator: Sylvain

Created: 2020-05-15 15:20:20 UTC

Size: 1.94 KB

patch

obsolete

>diff -r b4347abd4fbc SDL_ttf.c
>--- a/SDL_ttf.c	Mon Mar 30 10:14:32 2020 -0700
>+++ b/SDL_ttf.c	Fri May 15 17:07:57 2020 +0200
>@@ -3433,4 +3433,49 @@
>     return (int)(delta.x >> 6);
> }
> 
>+int TTF_GetFontSideBearingGlyphs32(TTF_Font *font, Uint32 ch, int *val1, int *val2)
>+{
>+    FT_Error error;
>+    c_glyph *glyph;
>+    FT_Vector delta;
>+
>+    TTF_CHECK_POINTER(font, -1);
>+
>+    if (ch == UNICODE_BOM_NATIVE || ch == UNICODE_BOM_SWAPPED) {
>+        if (val1) {
>+            *val1 = 0;
>+        }
>+        if (val2) {
>+            *val2 = 0;
>+        }
>+        return 0;
>+    }
>+
>+    if (Find_GlyphMetrics(font, ch, &glyph) < 0) {
>+        return -1;
>+    }
>+
>+    if (font->render_subpixel == 0) {
>+        /* FT KERNING_MODE_SMART */
>+        if (val1) {
>+            *val1 = glyph->kerning_smart.lsb_delta; /* FP 26.6 */
>+        }
>+        if (val2) {
>+            *val2 = glyph->kerning_smart.rsb_delta; /* FP 26.6 */
>+        }
>+    } else {
>+        /* FT LCD_MODE_LIGHT_SUBPIXEL */
>+        if (val1) {
>+            *val1 = glyph->subpixel.lsb_minus_rsb; /* FP 26.6 */
>+        }
>+        if (val2) {
>+            *val2 = glyph->subpixel.translation; /* FP 26.6 */
>+        }
>+    }
>+
>+    return 0;
>+}
>+
>+
>+
> /* vi: set ts=4 sw=4 expandtab: */
>diff -r b4347abd4fbc SDL_ttf.h
>--- a/SDL_ttf.h	Mon Mar 30 10:14:32 2020 -0700
>+++ b/SDL_ttf.h	Fri May 15 17:07:57 2020 +0200
>@@ -354,6 +354,9 @@
> /* Get the kerning size of two glyphs */
> extern DECLSPEC int TTF_GetFontKerningSizeGlyphs(TTF_Font *font, Uint16 previous_ch, Uint16 ch);
> extern DECLSPEC int TTF_GetFontKerningSizeGlyphs32(TTF_Font *font, Uint32 previous_ch, Uint32 ch);
>+/* Get side bearing of the glyph. val1: lsb_delta, val2: rsb_delta 
>+ * except when using TTF_HINTING_LIGHT_SUBPIXEL, val1: lsb_minus_rsb val2: translation */
>+extern DECLSPEC int TTF_GetFontSideBearingGlyphs32(TTF_Font *font, Uint32 ch, int *val1, int *val2);
> 
> /* We'll use SDL for reporting errors */
> #define TTF_SetError    SDL_SetError

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Attachments on bug 5135: 4341

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.